Grindstone-frame



(No Model.)

S. LEWIS.

GRINDSTONB FRAME.

No. 368,156. Patented Aug. 9, 1887.

UNITED STATES PATENT OFFICE.

SPENCER IIEiVIS, OF BOUNDARY, INDIANA.

GRINDSTONE-FRAME.

SPECIFICATION forming part of Letters Patent No. 368,156, dated August 9, 1887,

Application filed January 13, 1887.

To all whom it may concern.-

Be it known that I, SPENCER LEWIs, of Boundary, in the county of Jay and State of Indiana, have invented new and useful Improvements in Grindstone-Frames; and I do hereby declare that the following is a full, clear, and exact description thereof, reference being had to the accompanying drawings, which form a part of this specification.

This invention relates to certain new and useful improvements in knockdown grindstone-frames.

The invention consists in the peculiar construction, arrangement, and combination of the parts whereby a frame is produced that can readily be put together and as readily knocked down for shipment or transportation, all as more fully hereinafter set forth.

Figure 1 is a perspective view of my improved frame. Fig. 2 is a vertical erosssee tion through one pair of legs and locking-key.

In the accompanying drawings, A repre sents two side bars of a frame, near each end of which there is a mortise, a, to receive the ends of the metallic links B. Upon the outside faces of these bars, and coincident with the mortises, are formed the inclined ways or channels to receive the heads of the legs 0, which are inserted through the ends of the links resting in such channels. Upon the inside faces of the bars A, and also coincident with the mortises, are formed keyways for the reception of the keys D, which are inserted Serial No. 224,180. (No model.)

through the links, engaging with the wayslast described, and are driven from the top sufficiently to expand the side. bars, A, and compel the ends of the links to firmly secure the legs in place.

It will readily be seen by this construction that a frame .is provided which for the purpose of shipment can be knocked down and packed in a very small compass, while when set up it forms asubstanlial frame for the purpose described.

I deem my links and wedges far preferable to bolts and nuts, which have heretofore been employed in devices of this kind, as they are more readily put together and taken apart, and do not necessitate the weakening of the parts of the frame by the making of holes for the reception of the bolts.

\Vhat I claim as my invention is- The knockdown frame described, consisting of the parallel bars A, provided upon their adjacent faces with keyways and near their ends L with mortises a, the links B, inserted in said mortises, the legs 0, engaging said links outside said bars, and the wedgeshaped keys D, inserted through said links between the bars and engaging the ways therein, substantially as described.

SPENCER LEWUS.

\Vitnesses:

H. S. SPRAGUE, E. SCULLY. 

